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101.
We propose an original approximation method, which is based on Stein’s method and the zero bias transformation, to calculate
CDO tranches in a general factor framework. We establish first-order correction terms for the Gaussian and the Poisson approximations
respectively and we estimate the approximation errors. The application to the CDO pricing consists of combining the two approximations.
This work is partially supported by Fondation de risque. 相似文献
102.
103.
Stock market prices and long-range dependence 总被引:5,自引:0,他引:5
104.
105.
Alexander S. Cherny 《Mathematical Finance》2010,20(4):571-595
We solve the risk‐reward optimization problem in the discrete‐time setting, the reward being measured as the expected Profit and Loss and the risk being measured by a dynamic coherent risk measure. 相似文献
106.
Tina Hviid Rydberg 《Mathematical Finance》1999,9(2):183-201
A special class of diffusion processes, the generalized hyperbolic diffusion processes, is introduced. As a byproduct we present a technique for the construction of one-dimensional ergodic diffusion processes with a predetermined stationary density. We specifically study the application of this new type of diffusion process to financial data, especially U.S. stock prices. It is seen that in addition to confirming stylized features of the financial market, a key explanation concerning "thick-"tailed log returns is provided. 相似文献
107.
A new approach to modeling co-movement of international equity markets: evidence of unconditional copula-based simulation of tail dependence 总被引:1,自引:1,他引:0
Analyzing equity market co-movements is important for risk diversification of an international portfolio. Copulas have several
advantages compared to the linear correlation measure in modeling co-movement. This paper introduces a copula ARMA-GARCH model
for analyzing the co-movement of international equity markets. The model is implemented with an ARMA-GARCH model for the marginal
distributions and a copula for the joint distribution. After goodness of fit testing, we find that the Student’s t copula ARMA(1,1)-GARCH(1,1) model with fractional Gaussian noise is superior to alternative models investigated in our study
where we model the simultaneous co-movement of nine international equity market indexes. This model is also suitable for capturing
the long-range dependence and tail dependence observed in international equity markets.
Rachev’s research was supported by grants from Division of Mathematical, Life and Physical Science, College of Letters and
Science, University of California, Santa Barbara, and the Deutschen Forschungsgemeinschaft (DFG). Sun’s research was supported
by grants from the Deutschen Forschungsgemeinschaft (DFG) and Chinese Government Award for Outstanding Ph.D Students Abroad
2006, No. 2006-180. Kalev’s research was supported with a NCG grant from the Faculty of Business and Economics, Monash University.
Data are supplied by Securities Industry Research Center of Asia-Pacific (SIRCA) on behalf of Reuters. The constructive comments
of two anonymous referees, the Associate Editor, A.S. Wirjanto, and the Editor-in-charge, Baldev Raj, are gratefully acknowledged.
The reviewers and editors are not responsible for any residual errors and omissions. 相似文献
108.
Theodoros Chatzivasileiadis 《Applied economics letters》2018,25(21):1521-1526
The uncertainty and robustness of Computable General Equilibrium (CGE) models can be assessed by conducting a Systematic Sensitivity Analysis (SSA). Different methods have been used in the literature for SSA of CGE models such as Gaussian Quadrature and Monte Carlo methods. This article explores the use of Quasi-random Monte Carlo methods based on the Halton and Sobol’ sequences as means to improve the efficiency over regular Monte Carlo SSA, thus reducing the computational requirements of the SSA. The findings suggest that by using low-discrepancy sequences, the number of simulations required by the regular MC SSA methods can be notably reduced, hence lowering the computational time required for SSA of CGE models. 相似文献
109.
110.
D. P. Kennedy 《Mathematical Finance》1997,7(2):107-118
Models of the term structure of interest rates are considered for which, under the martingale measure, instantaneous forward rates are Gaussian. The possible forms of the covariance structure are characterized under appropriate formulations of the Markov property. It is demonstrated that imposing Markovian assumptions limits severely the covariances that may be obtained and that the strongest such formulation together with stationarity implies that the whole forward rate surface is necessarily a Gaussian random field described by just three parameters. 相似文献